Home/ Questions/Q 7849331
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-02T18:28:59+00:00

I have a GIF image file. I opened it using PIL.Image and did a

  • 0

I have a GIF image file. I opened it using PIL.Image and did a couple of size transforms on it. Then I tried to use ImageSharpness.Enhance() on it…

sharpener = PIL.ImageEnhance.Sharpness(img)
sharpened = sharpener.enhance(2.0)

This is causing an exception:

<type 'exceptions.ValueError'>
('cannot filter palette images',)

I tried to google for this error, but did not find anything. Can someone help me figure out what is going wrong?

FYI the mode of the input image is 'P'. I don’t have this problem if I work with jpg images.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team
    sharpener = PIL.ImageEnhance.Sharpness (img.convert('RGB'))

    It’s quite common for algorithms to be unable to work with a palette based image. The convert in the above changes it to have a full RGB value at each pixel location.

    • 0